A questionnaire concerning dreams and déjà vu experiences was administered to 122
university students. Of all the respondents, twenty-four were not sure whether they had
those experiences. Out of the rest ninety-eight students, forty-one students (41.8%)
reported at least one experience of precognitive dream. Although 20% of the
respondents claimed that the experiences were “true” precognitive dreams, major part
(about 80%) of the respondents regarded their experiences as “pseudo” precognitive
dreams (they recalled the dreams when they had “predicted” events). The onset age of
the precognitive dream is concentrated on the age between 6 to 10 years old. Déjà-vu
experience showed very similar pattern of age distribution. The respondents who had no
precognitive dreams experienced déjà vu significantly less frequently than the ones who
had “pseudo” precognitive dreams did. This research showed that many people use the
word “precognitive dream” in a wrong sense by definition and that those “precognitive”
dreams could be considered a subtype of déjà-vu experiences. (Sleep and Hypnosis
2002;4(3):111-114)